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Two-Way Pressure-Actuated Valves for High-Pressure Refrigerants regulate water flow to control refrigerant head pressure in systems with water-cooled condensers. Internal parts are corrosion-resistant with no close-fitting or sliding parts in water passages. Accessible range spring. Take-apart build with pressure-balanced structure. Maximum allowable water pressure is 150 psi. Available models are direct acting and come in a variety of different valve connection sizes.

Pneumatic Piston Damper Actuators Are Used For Air Flow Control Dampers, Interior Settings Or Confined Areas.

Pneumatic Piston Damper Actuators are multipurpose positioning devices used to positioning and operating dampers on Variable Air Volume (VAV), terminal units and small ventilating dampers in response to output signals of a pneumatic controller or electro-pneumatic transducer. Actuators feature high power to size ratio for locations in confined spaces, telescoping linkage and front or rear mounting options for flexible
installation and mounting configurations, and a lightweight aluminum housing. Available in a variety of models and spring ranges.

Pneumatic Transducers Output Pneumatic Control Signals In Response To Electronic Control Signals.

Electro-Pneumatic Transducers convert a voltage or current signal from an electronic controller into a pneumatic output pressure signal. An increase or decrease in the input signal proportionally increases or decreases (respectively) the output pressure signal from the EP-8000. The 0-10 VDC or 4-20 mA Input Range provides interface with a wide range of controllers or retrofit installations, hypodermic needle test point enables fast and easy output pressure signal measurement, factory set adjustable zero and span facilitates field calibrations, and high accuracy with low hysteresis provides long lasting durability. Easy installation on a variety of mounting surfaces, including direct mounting on pneumatic valve actuators. Available in 3 different output ranges.

Sump Pump Switches start an electric motor on liquid level rise and stop the motor on liquid level drop. The control cuts in when upper weight is submerged approximately halfway, and cuts out when lower weight is approximately half-exposed. Each switch includes 36 in. cable and (2) two weights. Equipped with a power cord and a piggyback style plug for ease of use. Available in several models with Clamp or Bracket mount type.

Liquid Level Float Switches Are Used For Liquid Level Control For Open And Closed Tanks And Sumps.

Liquid Level Float Switches are made of a rugged steel enclosure for long lasting durability. Can be wired to close one circuit and open another circuit when liquid level rises above or falls below the required level. The F63AC-1 provides NEMA1 general purpose enclosure. F63BF-1 provides NEMA 3R rain tight enclosure. Not for use with hazardous fluids or in hazardous atmosphere. Max fluid pressure is 100 psig (690 kPa). Max fluid temperature is 250°F (121°C).

TRUERH™ Duct Probe Humidity Devices Are Used For Humidity And Temperature Readings In Wall Or Duct-Mount.

TRUERH™ Duct Probe Humidity Element with Temperature Sensors are made of all-polymer for improved resistance to chemical corrosion. Humidity sensor patented sensing element provides accurate and reliable humidity sensing. Circuitry and calibration techniques are patent pending. One-unit humidity and temperature sensors reduce installation costs. User-selectable output voltage range allows choice of standard voltage outputs for use with systems in service or new systems. HE Series Devices are available in Duct or Wall Mount styles. HL Series Devices provide several humidity control applications, including high-limit or proportional override, stand-alone proportional or stand-alone two position. Duct Humidistats function as an operating control that automatically shuts off a humidifier when setpoint is reached, and turns it on when humidity falls 5% below the setpoint.

Damper Actuators improve reliability by eliminating damper linkages, and the single screw coupling provides three-point shaft gripping for ease of use. For zone damper and ball valve actuator applications, the small size provided access to tight-fitting locations. The synchronous drive provides constant rotation time independent of load, and the magnetic clutch provides torque protection for the actuator and damper. Available in a variety of Damper, Non-Spring Return Actuators, and Electric Spring Return Actuator in a variety of styles and torques.

Honeywell TrueZone® System Kits Provide The Benefit Of Even Temperature Control With The Ease Of Application And Maximum Flexibility.

All kits include a zone panel, transformer and discharge air temperature sensor. Works with virtually any brand equipment for zone control of conventional, heat pump or dual fuel systems. Push-in terminal blocks wire in half the time as compared to screw terminals. 8" wide panels can be mounted on the return duct, studs or wall next to the system. Wires can be run on the side, top, bottom or backside of the panel. LEDs indicate which zones are calling, if it's for heating or cooling and when the emergency heat is on. Reduces blower speed in cooling when one zone is calling. Downstages equipment when discharge air temperature is near the limit or shuts down. YHZ kits include everything you need for a two zone wireless zoning system except dampers.

Honeywell Zoning Products Are Used For Conventional And Hydronic Heating Systems To Deliver Even Temperature Control And Cost Savings.

Honeywell AQ series of AQUATROL Programmable Relay Boiler Controls provide simplified, energy-efficient control of single-temperature, residential hydronic heating systems. Easily converts a single zone heating system into a room-by-room comfort control system, or upgrades a basic, relay-logic zoning system to intelligent Zone of Greatest Demand control for increased energy efficiency with reduced boiler cycling. Boiler controls can ensure an ample supply of hot water for both space heating and priority generation of domestic hot water for bathing, dishes and laundry. Choose from the full-featured HZ432, the flexible HZ322, or the economical HZ311 and HZ221 systems for conventional, heat pump or dual fuel applications. Conventional and hydronic thermostats, accessories, replacement parts and kits are also available.

Static Pressure Control - Used W/ Mard For Bypass Control Are Used For A Variety Of Air Quality Applications.

Static Pressure Control - Used W/ Mard For Bypass Control is constructed with high quality materials for long lasting durability. Replacement part with 24 AC voltage and connection screw terminals. Provides C, NC and NO terminal designation. Motorized bypass application. Quantity is 1.

Argo Switching Relays have a sturdy construction for long lasting durability and strength. Available in a variety of styles to fit a wide array of applications. Choose from Single Zone, 2 Zone, 3 Zone, 4 Zone and 6 Zone models. The relay diagnostic light is easily viewable through the window for quick and easy reading. Features Plug-In Replaceable Relays, a 5-Second Time Delay for boiler shut-off and a Priority Safety Timer that prevents freeze-ups and ensures that other zones get heat every 30 minutes. Dimensions vary from model to model.

Argo Zone Valve Controls Are Clearly Marked For Easy And Accurate Installation. Argo Zone Valve Controls have a sturdy construction for long lasting durability. They are compatible with all types of thermostats and have a front window with clearly visible LED, diagnostic lights for easy troubleshooting. Expandable up to 10 zones with priority utilizing two Az controls. Choose from 3 Zone, 4 Zone, 5 Zone and 6 Zone models. Comes in a sleek, black color for an attractive look. Dimensions and horsepowers vary.